Soil Structure Evaluation With Audiofrequency Vibrations1
- Ron W. Rickman2
Young's moduli for soils measured with a vibrational technique varied with soil aggregate size, water content, texture, sensor-to-sample contact, and column handling. The magnitude of a Young's modulus varied from 107 dynes/cm2 (147 psi) for nearly saturated columns to over 109 dynes/cm2 for an airdried, Na-saturated silt. The accuracy of the moduli measurements is in the order of 15% to 20%. The measured values compare favorably with others previously reported in the literature for undisturbed and reworked soil samples. The range of measured soil moduli, the repeatability of the measurements, the lack of restriction on sample size and the nondestructive nature of the technique indicate that this procedure may provide a useful measure for soil structure evaluation.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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